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WorksheetsKaryotypes
Total questions: 20
Worksheet time: 13mins
Name
Class
Date
1.
Determine the sex of the individual whose karyotype is displayed in the image.
a)
female
b)
male
2.
Determine the sex of the individual whose karyotype is displayed in the image.
a)
female
b)
male
3.
Which structure is labeled as A in the diagram?
a)
Centromere
b)
Chromosome
c)
Sister chromatids
4.
Which structure is labeled as B in the diagram?
a)
Centromere
b)
Chromosome
c)
Sister chromatids
5.
Which structure is labeled as C in the diagram?
a)
Centromere
b)
Chromosome
c)
Sister chromatids
6.
What is the structure that holds the sister chromatids together called?
a)
homologous chromosome
b)
centromere
c)
chromatid
d)
nondisjunction
7.
When chromosomes fail to separate correctly during anaphase of meiosis, what can occur?
a)
extra chromosomes are found in the sex cell
b)
chromosomes of the sex cell are doubled
c)
chromosomes of the sex cell are halved
d)
meiosis never completes
8.
Nondisjunction can result in
a)
trisomy conditions
b)
monosomy conditions
c)
additional sex chromosomes
d)
all of these
9.
A pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are called
a)
sister chromotids
b)
centromeres
c)
homologous chromosomes
d)
autosomes
10.
A sperm contains
a)
Both an X and a Y chromosome
b)
Two X chromosomes
c)
An X OR a Y chromosome
d)
only a Y chromosome
11.
An egg contains
a)
22 autosomes and an X chromosome
b)
22 autosomes and an Y chromosome
c)
44 autosomes and 2 X chromosomes
d)
44 autosomes and an X and a Y chromosome
12.
What makes this individual's karyotype not normal?
a)
An extra sex chromosome
b)
An extra autosome
c)
A missing sex chromosome
d)
A missing autosome
13.
What is the sex of this individual?
a)
female
b)
male
14.
What is the sex of this individual?
a)
female
b)
male
15.
What is the sex of this individual?
a)
female
b)
male
16.
Down's syndrome occurs because of a(n)
a)
missing sex chromosome
b)
extra sex chromosome
c)
additional 21st chromosome
d)
additional 18th chromosome
17.
Turner's Syndrome has a karyotype notation of
a)
47XX+21
b)
47XXY
c)
45XO
d)
44XX
18.
Klinefelter's Syndrome has the karyotype notation of
a)
47XX+21
b)
47XXY
c)
45XO
d)
44XX
19.
Chromosome pairs 1-22 are referred to as
a)
sex chromosomes
b)
sister chromatids
c)
a karyotype
d)
autsomes
20.
A picture of paired chromosomes is a
a)
sister chromatid
b)
centromere
c)
syndrome
d)
karyotype
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